CN111058533A - Friction energy consumption type assembled beam column connecting node - Google Patents
Friction energy consumption type assembled beam column connecting node Download PDFInfo
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- CN111058533A CN111058533A CN201911373247.7A CN201911373247A CN111058533A CN 111058533 A CN111058533 A CN 111058533A CN 201911373247 A CN201911373247 A CN 201911373247A CN 111058533 A CN111058533 A CN 111058533A
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- shaped steel
- connecting piece
- flange
- lower flange
- web
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/024—Structures with steel columns and beams
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2415—Brackets, gussets, joining plates
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2418—Details of bolting
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model provides a friction power consumption type assembled beam-column connected node, includes H shaped steel post and H shaped steel roof beam, the top flange, the bottom flange of H shaped steel roof beam all are connected with the column flange of H shaped steel post through the edge of a wing connecting piece, the web of H shaped steel roof beam both sides all is connected with the column flange of H shaped steel post through the web connecting piece, H shaped steel roof beam, bottom flange connecting piece and web connecting piece all are connected with H shaped steel post, H shaped steel roof beam respectively through many sets of high-strength bolt, other bolt holes on the web of the beam are horizontal long round bolt hole, and the bolt hole on the bottom flange connecting piece that is connected with the bottom flange apron is horizontal long round bolt hole. The invention utilizes the friction energy consumption of each part to weaken the deformation and damage of the earthquake to the node, maintains the relative stability of the main body structure and is also beneficial to the repair after the earthquake; meanwhile, the assembled node can improve the construction efficiency on site and reduce the construction time of the main structure.
Description
Technical Field
The invention relates to the technical field of building structure engineering, in particular to a friction energy-consumption type assembled beam-column connecting node.
Background
In traditional high-strength bolt connection beam column node, through high-strength bolt fastening connection, when taking place the earthquake, the holistic ductility of component is not enough, and the energy can only be through the destruction of bolt and the yield of member or even fracture, destruction come dissipation energy, and the holistic ductility of component is not enough, consequently can't guarantee component overall structure's limit bearing capacity to need to change overall structure, cause a large amount of maintenance, reconstruction cost. In traditional beam column all welded joint, the beam top and bottom flange and web and post are welded on site, and the joint ductility of this form is poor, takes place brittle failure easily in the earthquake, and needs on-site welding, has influenced construction speed and quality greatly, is not suitable for among the assembled steel structure, simultaneously because welding area is big, produces great residual stress easily, influences the atress performance of node.
Disclosure of Invention
In order to solve the problems, the invention provides a friction energy-consumption type assembly beam-column connecting node, which has the following specific technical scheme:
a friction energy-consumption type assembly beam-column connection node comprises an H-shaped steel column and an H-shaped steel beam, wherein the upper beam flange of the H-shaped steel beam is connected with the column flange of the H-shaped steel column through an upper flange connecting piece, the lower beam flange of the H-shaped steel beam is connected with the column flange of the H-shaped steel column through a lower flange connecting piece, beam webs on two sides of the H-shaped steel beam are connected with the column flange of the H-shaped steel column through web connecting pieces, and the H-shaped steel beam, the lower flange connecting piece and the web connecting pieces are respectively connected with the H-shaped steel column and the H-shaped steel beam through multiple sets of high-strength bolts; standard bolt holes matched with the high-strength bolts are formed in the beam upper flange, the upper flange connecting piece, the column flange and the web connecting piece, the bolt hole at the uppermost end of the beam web is the standard bolt hole, and other bolt holes in the beam web are horizontal long round bolt holes; the bottom surface of the lower flange connecting piece is provided with a lower flange cover plate matched with the lower flange connecting piece, the lower flange cover plate is connected with the lower flange connecting piece and the beam lower flange through high-strength bolts, and bolt holes in the lower flange connecting piece connected with the lower flange cover plate are long and round bolt holes in the horizontal direction.
Furthermore, gaskets are arranged between the beam lower flange and the lower flange connecting piece and between the lower flange connecting piece and the lower flange cover plate.
Further, the shim is a brass shim.
Furthermore, the upper flange connecting piece, the lower flange connecting piece and the web connecting piece are all angle steels.
Furthermore, a certain gap is formed between the column flange and the end side face of the H-shaped steel beam through the angle steel.
Further, the width of the gap is not smaller than the sliding distance of the high-strength bolt towards one side in the long round bolt hole.
Furthermore, stiffening ribs which are respectively flush with the horizontal connecting parts of the angle steel are arranged on the H-shaped steel column.
Has the advantages that:
the invention utilizes the friction energy consumption of each part to weaken the deformation and damage of the earthquake to the node, maintains the relative stability of the main body structure and is also beneficial to the repair after the earthquake; meanwhile, the assembled node can improve the construction efficiency on site and reduce the construction time of the main structure.
Drawings
Fig. 1 is an overall schematic view of the present invention.
Fig. 2 is a front view of the present invention.
FIG. 3 is a schematic view of a web bolt hole of the present invention.
Fig. 4 is a partial enlarged view of the present invention.
In the figure: 1H-shaped steel beam, 11 beam upper flanges, 12 upper flange connecting pieces, 13 beam lower flanges, 14 lower flange connecting pieces, 15 beam webs, 16 web connecting pieces, 2H-shaped steel columns, 21 column flanges, 3 high-strength bolts, 4 standard bolt holes, 5 long round bolt holes, 6 stiffening ribs, 7 brass gaskets and 8 lower flange cover plates.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments:
as shown in fig. 1 and 2, the friction energy dissipation type fabricated beam-column connection node comprises an H-shaped steel column 2 and an H-shaped steel beam 1, wherein a beam upper flange 11 of the H-shaped steel beam 1 is connected with a column flange 21 of the H-shaped steel column 2 through an upper flange connecting piece 12, a beam lower flange 13 of the H-shaped steel beam 1 is connected with the column flange 21 of the H-shaped steel column 2 through a lower flange connecting piece 14, beam webs 15 on two sides of the H-shaped steel beam 1 are connected with the column flange 21 of the H-shaped steel column 2 through web connecting pieces 16, and the H-shaped steel beam 1, the lower flange connecting pieces 14 and the web connecting pieces 16 are connected with the H-shaped steel column 2 and the H-shaped steel beam 1 through multiple sets of high-strength bolts 3. The nodes are installed in an assembly mode, field welding operation is effectively avoided through factory welding and site bolting on a construction site, larger residual stress is avoided, and the H-shaped steel column 2 is installed on a foundation; the H-shaped steel column 2 is provided with stiffening ribs 6 at the H-shaped steel beam 1, and the stiffening ribs 6 are respectively flush with the horizontal connection parts of the upper flange connecting piece 12 and the lower flange connecting piece 14, so that the column flange 21 of the H-shaped steel column 2 can be prevented from being locally bent.
As shown in fig. 3, the beam upper flange 11, the upper flange connecting piece 12, the column flange 21 and the web connecting piece 16 are all provided with standard bolt holes 4 matched with the high-strength bolts 3; the bolt hole of the top on the web plate 15 is standard bolt hole 4, and standard bolt hole 4 on the web plate 15 is the center of rotation of H shaped steel roof beam 1, and other bolt holes on the web plate 15 are long round bolt holes 5 to the level. When the H-shaped steel beam 1 bears a load, the H-shaped steel beam 1 rotates around the rotation center, relative displacement is generated between the web plate 15 of the H-shaped steel beam 1 and the web plate connecting piece 16, and because the web plate 15 and the web plate connecting piece 16 generate friction force when sliding, relative sliding between the web plate 15 and the web plate connecting piece 16 is restrained, and energy is consumed; meanwhile, by adjusting the pretightening force of the high-strength bolt 3, the static friction force of the beam web 15 and the web connecting piece 16 before yielding can reach the maximum value, so that the H-shaped steel beam 1 cannot generate plastic deformation due to overlarge stress and dissipate energy under the action of a large load. The high-strength bolt 3 connected between the upper flange connecting piece 12 and the beam flange can provide large rigidity restraint, and cooperates with the web connecting piece 16 to restrain the large deformation of the beam upper flange 11 of the H-shaped steel beam 1, so that the stability of the beam upper flange 11 is ensured, and the floor slab cannot be damaged due to the overlarge local deformation.
As shown in fig. 4, a bottom surface of the lower flange connecting piece 14 is provided with a lower flange cover plate 8 matched with the bottom surface, the lower flange cover plate 8 is connected with the lower flange connecting piece 14 and the beam lower flange 13 through high-strength bolts 3, and bolt holes on the lower flange connecting piece 14 connected with the lower flange cover plate 8 are long and round bolt holes 5 in the horizontal direction; gaskets are arranged between the beam lower flange 13 and the lower flange connecting piece 14 and between the lower flange connecting piece 14 and the lower flange cover plate 8. Compared with the traditional node, the mode that standard holes are formed in bolts is adopted, the long round bolt holes 5 are formed in the lower flange connecting piece 14, when the H-shaped steel beam 1 is subjected to load, the connecting structure at the position has large slippage displacement and is a main energy consumption area; along with the increase of load, the displacement that slides increases, and high strength bolt 3 slopes, and then the pulling bottom flange apron 8 slides to can fine dissipation energy. The gaskets arranged among the beam lower flange 13, the lower flange connecting piece 14 and the lower flange cover plate 8 can improve the stability of friction hysteresis energy consumption and weaken plastic deformation and damage in the structure after the earthquake to the maximum extent; meanwhile, the problems of abrasion of the friction surface and mutual erosion of contact surface materials caused by long-time contact are reduced. In the post-earthquake repair, if the gasket is worn, only the brass gasket 7 needs to be replaced; or the high-strength bolt 3 is loosened and replaced, so that the connection strength before the earthquake can be recovered, and the repair is convenient and quick.
In this embodiment, the shim is a brass shim 7. The upper flange connecting piece 12, the lower flange connecting piece 14 and the web connecting piece 16 are all angle steel; the column flange 21 is provided with a certain gap through the end side faces of the angle steel and the H-shaped steel beam 1, and the width of the gap is not smaller than the sliding distance of the high-strength bolt 3 towards one side in the long round bolt hole 5.
Under the action of strong shock, the damage sequence of the joint is that the high-strength bolt 3 is damaged before the yield deformation of the lower flange cover plate 8 and the steel column, so that only the bolt needs to be replaced after the shock, the steel column does not need to be replaced or the whole body is pushed down for reconstruction, and the effect of low loss or even no damage is achieved.
Claims (7)
1. The utility model provides a friction power consumption type assembled beam-column connected node, includes H shaped steel post and H shaped steel roof beam, the roof beam top flange of H shaped steel roof beam is connected with the column flange of H shaped steel post through last flange connecting piece, and the roof beam bottom flange of H shaped steel roof beam is connected with the column flange of H shaped steel post through the bottom flange connecting piece, the web of the beam web of H shaped steel roof beam both sides all is connected with the column flange of H shaped steel post through the web connecting piece, H shaped steel roof beam, bottom flange connecting piece and web connecting piece all are connected its characterized in that with H shaped steel post, H shaped steel roof beam respectively through many sets of high-strength bolts: standard bolt holes matched with the high-strength bolts are formed in the beam upper flange, the upper flange connecting piece, the column flange and the web connecting piece, the bolt hole at the uppermost end of the beam web is the standard bolt hole, and other bolt holes in the beam web are horizontal long round bolt holes; the bottom surface of the lower flange connecting piece is provided with a lower flange cover plate matched with the lower flange connecting piece, the lower flange cover plate is connected with the lower flange connecting piece and the beam lower flange through high-strength bolts, and bolt holes in the lower flange connecting piece connected with the lower flange cover plate are long and round bolt holes in the horizontal direction.
2. A friction dissipating fabricated beam column connection node as claimed in claim 1, wherein: gaskets are arranged between the beam lower flange and the lower flange connecting piece and between the lower flange connecting piece and the lower flange cover plate.
3. A friction dissipating fabricated beam column connection node as claimed in claim 2, wherein: the gasket is a brass gasket.
4. A friction dissipating fabricated beam column connection node as claimed in claim 1, wherein: the upper flange connecting piece, the lower flange connecting piece and the web connecting piece are all angle steels.
5. A friction dissipating fabricated beam column connection node as claimed in claim 4, wherein: and a certain gap is formed between the column flange and the side face of the H-shaped steel beam through the angle steel.
6. A friction dissipating fabricated beam column connection node as claimed in claim 5, wherein: the width of the gap is not less than the sliding distance of the high-strength bolt towards one side in the long round bolt hole.
7. A friction dissipating fabricated beam column connection node as claimed in claim 4, wherein: and stiffening ribs which are respectively flush with the horizontal connecting parts of the angle steels are arranged on the H-shaped steel columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911373247.7A CN111058533A (en) | 2019-12-27 | 2019-12-27 | Friction energy consumption type assembled beam column connecting node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911373247.7A CN111058533A (en) | 2019-12-27 | 2019-12-27 | Friction energy consumption type assembled beam column connecting node |
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| Publication Number | Publication Date |
|---|---|
| CN111058533A true CN111058533A (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911373247.7A Pending CN111058533A (en) | 2019-12-27 | 2019-12-27 | Friction energy consumption type assembled beam column connecting node |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282094A (en) * | 2020-10-22 | 2021-01-29 | 东南大学 | Steel structure node capable of dissipating energy by stages and replacing energy dissipation elements |
| CN112962786A (en) * | 2021-02-07 | 2021-06-15 | 西安理工大学 | Eccentric support-steel beam combined energy dissipation frame and assembling method thereof |
| CN113062447A (en) * | 2021-03-15 | 2021-07-02 | 江南大学 | Detachable modular beam-column joint device and construction method thereof |
| CN114215410A (en) * | 2021-12-07 | 2022-03-22 | 北京工业大学 | Bearing-self-resetting-energy dissipation unilateral sliding assembly type steel frame beam column joint |
| CN114232793A (en) * | 2021-11-30 | 2022-03-25 | 北京交通大学 | Fully-assembled modular steel structure connecting node with additional energy consumption |
-
2019
- 2019-12-27 CN CN201911373247.7A patent/CN111058533A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282094A (en) * | 2020-10-22 | 2021-01-29 | 东南大学 | Steel structure node capable of dissipating energy by stages and replacing energy dissipation elements |
| CN112962786A (en) * | 2021-02-07 | 2021-06-15 | 西安理工大学 | Eccentric support-steel beam combined energy dissipation frame and assembling method thereof |
| CN113062447A (en) * | 2021-03-15 | 2021-07-02 | 江南大学 | Detachable modular beam-column joint device and construction method thereof |
| CN113062447B (en) * | 2021-03-15 | 2022-03-25 | 江南大学 | Detachable modular beam-column joint device and construction method thereof |
| CN114232793A (en) * | 2021-11-30 | 2022-03-25 | 北京交通大学 | Fully-assembled modular steel structure connecting node with additional energy consumption |
| CN114215410A (en) * | 2021-12-07 | 2022-03-22 | 北京工业大学 | Bearing-self-resetting-energy dissipation unilateral sliding assembly type steel frame beam column joint |
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